Invoicing - Brief Summary: Type customer's name Click the pencil at the bottom of the orange box Select batch invoice from billing terms drop down.
Step one: Type in customer's name. 
Step two: Click the pencil in the bottom- right of the orange box, which you will find in the customer account. 

Step three: Click the pencil and it will open up the dialogue box
Step four: Select Batch Invoice in the Billing Terms drop down. 
Step five: Click Save Customer. 
